Question

Given the soccer field with length of 84m and width of 35 m what is the distance of the diagonal of the field

Answer 1

Need help

Answer 2

use the pythagorean theorem
If the diagonal has length x, then
x^2 = 35^2 + 84^2

You can save yourself some calculation by learning a few of the basic Pythagorean triples, such as
3-4-5, 5-12-13, 8-15-17, 7-24-25
and their multiples.